I used them a few years ago to revamp my entire yard. I spent $5000 and was somewhat pleased with the results, although the were supposed to lower the rocks in my front yard and I don't believe they did. The worst part is that after the entire yard revamp, which included lots of digging and rock laying, my pool backwash system became clogged. I called to ask the owner if something they did could have caused this backup in my pool backwash system. Funny that my backwash would become clogged the same week of my yard improvements when I had never had any issues with it, in 5 years. He said he doubted it but he reluctantly agreed to send someone out to take a look. I told him that I would not be home and they should just enter the yard on their own as they did before. When the guy showed up, and saw that nobody was home, he left. He didn't even bother to take a look at the issue even though they had permission to do so without my being there. When I called the owner to find out when they would be coming to take a look at the issue, he told me that his guy showed up and because I wasn't home "he left because I pay my guys hourly and I'm not going to have him sit around and wait, we have other jobs to do". I really feel like I should have pushed the issue farther but they were so rude to me and unhelpful that I actually went to another company and paid $300 to have the backwash pipe fixed. I spent $300 just to avoid ever having to communicate with this company again.